What are R1 to R9 housekeeping chemicals used for?

R1 to R9 chemicals are standardized institutional cleaning concentrates: R1 is for bathroom fittings and tiles, R2 is an all-purpose hygienic hard surface cleaner, R3 is a streak-free glass cleaner, R4 is a wooden furniture polish, R5 is an air freshener/deodorizer, R6 is a heavy toilet bowl cleaner, R7 is an oily floor stripper/cleaner, R8 is an acidic descaler, and R9 is an acid-based bathroom heavy scale remover.

What is the standard dilution ratio for R1 bathroom cleaner?

For normal daily maintenance, R1 is diluted at 20 ml per liter of water (1:50 ratio). For heavy stains, scale buildup, and deep sanitization, it can be diluted at 50 ml per liter of water (1:20 ratio).

Can R6 toilet cleaner be used on marble or granite floors?

No. R6 is a concentrated hydrochloric acid-based toilet bowl descaler. It must NEVER be used on marble, terrazzo, or polished granite, as the acid will permanently etch and dissolve the calcium carbonate surface. Use neutral R2 on natural stone surfaces.

Hotel Housekeeping Chemicals Guide: Complete R1 to R9 Dilution Chart & Safety Standards (2026)

In commercial hospitality and healthcare facility management, achieving sterile, spotless guest environments while controlling operating budgets requires systematic chemical usage. The internationally recognized R1 to R9 housekeeping chemical coding system (popularized by Taski / Diversey and manufactured by certified Indian chemical blenders) ensures that housekeeping attendants never cross-contaminate surfaces or cause expensive chemical damage to marble countertops, brass bathroom fixtures, or tempered glass partitions.

Complete R1 to R9 Housekeeping Chemicals Reference Chart

Below is the complete operational matrix detailing every chemical code, its primary application, standard water dilution ratios, and safety protocols for commercial hotels and institutions.

Code	Product Category	Colour Code	Normal Dilution	Heavy Dilution	Target Surfaces
R1	Bathroom Cleaner & Sanitizer	Orange / Red	20 ml / Ltr	50 ml / Ltr	Washbasins, wall tiles, chrome faucets, bathtubs
R2	All-Purpose Hard Surface Cleaner	Green	20-30 ml / Ltr	50 ml / Ltr	Marble floors, granite, laminates, door handles, walls
R3	Glass Cleaner (Streak-Free)	Sky Blue	20-50 ml / Ltr	Ready to use	Mirrors, glass windows, display cases, glass table tops
R4	Wooden Furniture Polish & Maintainer	White Liquid	Ready to use (100%)	No water dilution	Solid wood headboards, nightstands, desks, wood panelling
R5	Room Air Freshener & Deodorizer	Pink	Ready to use (100%)	Spray undiluted	Guest rooms, elevator lobbies, banquet halls, corridors
R6	Heavy-Duty Toilet Bowl Cleaner	Dark Blue	Ready to use (100%)	Apply under rim	Ceramic toilet bowls, urinals (NEVER use on marble)
R7	Floor Cleaner / Oil & Grease Stripper	Greenish Yellow	20-40 ml / Ltr	50-100 ml / Ltr	Kitchen floors, parking decks, engineering workshops
R8	Kettle & Coffee Maker Descaler	Clear Liquid	50-100 ml / Ltr	200 ml / Ltr	Electric kettles, commercial dishwashers, bain-maries
R9	Acidic Bathroom Heavy Scale Remover	Purple	50 ml / Ltr	100 ml / Ltr	Hard water stains, ceramic tile scale, grout cleaning

Key Dilution Rules to Prevent Cost Overruns

One of the largest hidden expenses in housekeeping operations is chemical wastage caused by staff dispensing concentrates by "eyeball" estimation rather than measuring caps or automatic dilution proportioners.

Never over-concentrate: Using 100 ml of R2 instead of 20 ml does not clean five times faster—it leaves a sticky, tacky chemical residue on floors that attracts black shoe marks and dust.
Colour-coded microfiber matching: Always train housekeeping staff to pair chemicals with matching cloth colors: Red for toilet areas (R6/R1), Blue for glass (R3), Green for dining tables (R2), and Yellow for general surfaces.
Personal Protective Equipment (PPE): Gloves and safety goggles are strictly mandatory when handling acid-based descalers like R6 and R9.